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Flora

SEDGE SHADOW

Type: VASCULAR PLANTS (PLANTAE VASCULARES)
Department: POKRYTOSEMENNYE (FLORAL) (ANGIOSPERMAE (MAGNOLIOPHYTA))
Class: MONOCOTYLEDONOUS (LILIOPSIDY) (MONOCOTYLEDONES (LILIOPSIDA))
Order: OSOKOTsVETNYE (CYPERALES)
Family: SYTEVYE (SEDGE) (CYPERACEAE)

Look: CAREX UMBROSA HOST
        USAK TSENYAVY

Category of protection: 4



International importance:
It is included in the 1st and 2nd editions of the Red List of Belarus (1981, 1993) and the Red List USSR (1975, 1984). It is protected in Ukraine and the Russian Federation.

Description:
The plant, long-term grassy gustodernovinny without creeping rhizomes, with the numerous upright stalks 25-40 cm high covered at the basis light - grayish-brown, is strong voloknisto the split lower scale-like leaves and sheet vaginas of the died-off (last year's) leaves. Median leaves 2-3 mm wide almost equal to stalks. The inflorescence is top, consisting of the top man's cone and 2-3 below the located female cones on short legs. Sacks oblong obratnoyaytsevidnye, trimmed, yellowish-green, with a little extended basis.

Distribution:
The European look growing in a moderate zone. The area covers the Mediterranean, Atlantic (Belgium), Average and East (the Ukrainian Carpathians, the Leningrad and Bryansk Region of Russia, the Zhytomyr Region of Ukraine) Europe. In Belarus is on northern and east borders of an area. According to old literary and gerbarny data it is known from the second half of the 19th century in the Slutsk County, Braginsk, Pinsk and Recyca districts. Instructions on growth of a look in Gorecki the district were wrong. By the end of the 80th years of last century it is found in Grodno, Drogichinsky, Zhitkovichsky, Ivanovskoye and Pukhovichsky districts. In recent years it is repeatedly noted in Drogichinskom and Pinsk districts, and also found in Berezovsky, the Brest, Kobrin, Loyevsky, Mazyr, Nesvizhsky, Pruzhansky, Svislochsky, Stolinsky and Hoyniksky districts.

Habitats:
The dry light deciduous, pine and mixed woods and their edges, open grassy slopes, bushes, usually grows on the carbonate soil.

Biology:
Blossoms at the end of April - May, fructifies in June - the beginning of July. Anemofil. Reproduction is seed. Zoochorus (mirmekokhor).

Number and tendency of its change:
Populations known now have the different level of viability. The majority of them occupy the space from one to several tens square meters and are presented by small groups of individuals. The population revealed in recent years in Drogichinsky district occupies the space in several hectares. The location in Pukhovichsky district is not revealed.

Major factors of threat:
Anthropogenous: economic transformation of lands, excessive recreational loadings and pasturage of cattle, spring pala, mechanical damage of plants during the silvicultural works; natural: natural change of a vegetable cover - overgrowing of sites tall cereals.

Protection measures:
There is under protection in National parks "Pripyat" also "Bialowieza Forest", the Polesia radiation and ecological reserve, a number of republican and local wildlife areas: "Zvanets" (Drogichinsky district), "Olmansky bogs" (Stolinsky district), "Pribuzhsky Polesia" (Brest district), "Sporovsky" (Berezovsky district), etc. It is cultivated in the Republican ecological center of children and youthes (Minsk). In places of growth it is necessary a ban on economic transformation of lands and pasturage of cattle, mowing should be carried out not earlier than the second half of June, to carry out timber actions in winter time; introduction of a look to culture as a deciduous ornamental plant is recommended.

Originators: Skuratovich A.N.